System for discharging lubricants from vehicle motors



Feb. 14, 1928.

Original Filed Oct,

Vtilliltl! 40 it is contemplated Patented Feb. 14, 1928.

UNITED STATES HENRY D. COLLIER,

COMPANY OF CALIFORNIA, OF SAN FRANCISCO, CALIFORNIA,

' DELAWARE.

OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO STANDARD OIL A CORPORATION OFSYSTEM FOR DISCHARGING- LUBRICANTS FROM VEHICLE MOTORS.

Original application filed October 11,

This invention relates to a system for discharging lubricant fromvehicle motors, and is particularly adapted to provide a convenientmethod and apparatus for rapidly discharging vehicle motor crank cases.

In United States Letters Patent No. 1,609,697, granted December 7 1926,there is shown a system and apparatus whereby lubricant may bedischarged from vehicle 10 motors quickly and efiectively, without thenecessity of an operator getting under the car to remove the drain plug,and by which system and apparatus the lubricant is caused to dischargefrom the lubricant holding case through an eduction tube or hosecommunicating with the lowest portion of the lubricant holding case. Thespecific means there illustrated for establishing communication betweenthe eduction tube or hose and the lowest portion of the lubricantholding case comprises a discharge conduit or pipe communicating fromthe drain port of the lubricant holding case and extending upward to apoint readily accessible above the high level of the lubricant in thecase.

The object of the present invention is to provide a specificallydiiierent means for establishing communication between such an eductiontube or hose and the lowermost portion of the lubricant holding case,which means will comprise a member or nozzle mounted on the free end ofthe eduction tube or hose and adapted to be inserted through a dischargeport into the lowermost portion of the case. In a system of this type,it is important to make suitable provision to insure that the lubricantholding case is completely and effectively discharged of lubricant, andfor that purpose that the lubricant holding case of the present systemshall be shaped to rovide a lowermost portion or sump to which thelubricant in the case will drain, and thereby cause the heavy ends andsettlings to be discharged with the bulk of the lubricant. To enable theeduction tube to positively and readily communicate with this lowermostportion or sump of the lubricant holding case, it is contemplated thatthe motor vehicles employed with the present system shall be providedwith a con- 1924, S erial No. 743,130. Divided and this applicationfiled March 23, 1927. Serial No. 177,579.

venient discharge port or opening positioned above the high level of thelubrlcant in the case at a readily accessible point upon raising themotor hood, and in proper alignment with the lowermost port-ion or sumpof the lubricant holding case.

The preferred employment of the present system will include theconnection of the eduction tube or hose at one end to a lubri-- cantreceiver at a service station, and the provision at the free end of theeduction tube or hose of a nozzle adapted to be readily inserted throughthe discharge port and into the lowermost portion or sump of thelubricant cases, above referred to, as the vehicles are brought to theservice station. A suitable means is provided for creating a reducedpressure in the lubricant receiver to cause lubricant to flow from thevehicle motors through the eduction tube or hose when the system isoperatively connected as described. This system enables the lubricantholding cases of vehicle motors to be quickly and readily discharged asthe vehicle is driven to the service station and the system connectedand operated by the attendant. The present system is adaptedparticularly to vehicles having lubricant holding cases shaped in themanner described and provided with a discharge port in operativealignment with the lowermost portion of the case, as above described,and avoids the necessity for the provision of a lubricant dischargeconduit constituting part of the vehicle as described in the said UnitedStates Letters Patent No. 1,609,697. This application is a division ofapplication, Serial No. 743,130, filed October 11, 1924.

The accompanying drawings illustrate a preferred embodiment of theinvention.

Figure 1 is a perspective view of a service or filling station equippedwith the necessary apparatus embodying the invention, some portions ofthe apparatus being hldden from view in the station and in the earth. Amotor vehicle is shown wi h the hood raised and the lubricant eductiontube of the system positioned to discharge lubricant from the crank caseof the engine.

Fi 'u're 2 is a vertical section taken on the time indicated by X-'-- ofFlg. a,

showing the crank case of a motor vehicle illustrating the preferredembodiment of this invention.

Figure 3 is a side elevation of the crank case shown in Fig. 2 with aportion of the side of the crank case broken away.

Referring to Fig. 1 of the drawing, there is provided a lubricanteduction tube or hose 15 for discharging lubricant from the lubricantholding or crank case B of the motor vehicle A. The eduction tube orhose 15 is connected at one end with a lubricant receiver 18 which maybe conveniently and attractively mounted at a service station, asillustrated in Fig. 1 of the drawings. By creating a reduced pressure inthe lubricant receiver 18, lubricant is drawn from the eduction tube orhose 15 into the lubricant receiver 18. A switch 19 is mounted in thelubricant receiver 18 to control the creation of this reduced pressure.As the present invention relates specifically to the arrangement forconnecting the free end of the eduction tube or hose 15 with thelowermost portion or sump of the lubricant holding case on the motorvehicle, no further description will be made here of the means forcreating a reduced pressure in the receiver 18, as such means and themeans for draining the receiver 18 are fully described in United StatesLetters Patent No. 1,609,697, aforesaid.

The lubricant holding case B is shaped to provide a lowermost portion orsump C to which the lubricant in the case will drain. A discharge port Dis provided at a point on the lubricant holding case B above thelubricant level therein, and preferably at a point readily accessibleupon raising the motor hood. This discharge port D is positioned inoperative alignment with the lowermost portion or sump C, so that amember inserted through the discharge port D will be directed into thelowermost portion or sump C. The discharge port D may be the breatherpipe of the motor case,'constructed to provide a suflicient clearancefrom working parts to permit the end of the eduction tube or hose 15 toextend into the lowermost portion or sump C.

A nozzle 20 is preferably carried at the free end of the eduction tubeor hose 15 for insertion into the lubricant case B through the dischargeport D. The nozzle 20 is of sufficient length to reach the lowermostportion or sump C without requiring the flexible tube or hose 15 toenter the case. A convenient working arrangement is obtained byproviding an exterior smooth surface for the nozzle 20 approximatelyfifteen inches long and one-half inch in diameter, enabling the nozzleto be readily slidably inserted through a bushing or guide 21 in theopening D of the case B. The end of the nozzle 20 may be notched as at22 to allow discharge of lubricant into the nozzle when the samecontacts at the bottom of the case B. The bushing-or guide 21 serves tomore readily guide the nozzle to the lowermost portion or sump C of thecase B. The discharge port D may be provided with a suitable detachablecap 23.

It will be readily understood from the above that the present inventionprovides a convenient means of establishing communication between thefree end of the eduction tube or flexible hose 15 and the lowermostpoint or sump C of the lubricant holding case of a motor vehicle, andenables the lubricant to be discharged from the lubricant case rapidlyand conveniently, without necessitating the operator getting under themotor vehicle or requiring the employment of a particular dischargeconduit embodied in or attached to the lubricant case. In operation, thevehicle may be. driven to the service station, equipped with theeduction tube 15 and the lubricant receiver 18, and the operator mayinsert the nozzle 20 through the discharge port D into the lowermostportion of the crank case or sump C upon merely raising the motor hood.The switch 19 may then beoperated to create a reduced pressure in thelubricant receiver 18 and the lubricant will thereupon be dischargedfrom the crank case to the receiver 18. The receiver 18 is preferablytransparent and of a size adapted to exhibit the lubricant dischargefrom an individual vehicle, and is provided with a suitable drainagesystem, as more specifically described in Patent No. 1,609,697.

A particular advantage of the present invention is that this systemserves to completely discharge the contents of the crank case withoutcausing the settlings or residual lubricant to remain in the lubricantholding case. It is well known that a lubricant case must be cleanlydischarged, and to accomplish this it is most important to insure theremoval of the last portion or dregs of the lubricant. It iscontemplated that the present system may require a modification in theconstruction of the crank cases of motor vehicles, and it is notrecommended that this system be employed with motor vehicle lubricantcases which do not have a lowermost portion or sump to which thelubricant will drain, and it is of course not adaptable to vehiclemotors in which there is no discharge port aligned with such a lowermostportion or sump and free of parts that would interfere.

with the insertion of the free end of the eduction tube or nozzle tooperative position, as heretofore described.

While the present invention relates specifically to the features andmeans referred to above, it is not intended to restrict the invention tothe details of the arrangement illustrated in the drawings, in so far assuch details are susceptible to variation without departing from theadvantages and characteristics of the system constituting thisinvention, and the invention is of the full scope set forth in thefollowing claims.

I claim 1. In a system for discharging lubricant from the lubricantholding cases of vehicle "motors, a crank case shaped to provide alowermost portion. to which the lubricant in the crank case will drainand provided with a discharge port above the lubricant .level and inoperative alignment with. the said lowermost portion of the crank case,a lubricant eduction tube provided at one end with a portion adapted tobe readily inserted through the said discharge port into the lowermostportion of the crank case, and means to create a reduced pressure in theeduction tube to cause the lubricantto discharge from the crank casethrough the eduction tube.

2. In a system for discharging lubricant from the lubricant holdingcases of vehicle motors, a crank case. shaped to provide a I lowermostportion to which the lubricant in the crank case will drain and providedwith a discharge port above the lubricant level and in operativealignment with thelowerniost portion of the crank case, a lubricanteduction tube connected at one end to a lubricant receiver andadapted atits opposite end to be inserted through the said discharge port into thelowermost portion of the crank case, and means to create a reducedpressure in, the lubricant receiver to cause the lubricant to dischargefrom the crank case to the lubricant receiver through the eduction tube.

3. In a system for discharging lubricant -from the lubricant holding.cases of vehicle motors, a crank case shaped to lowermost portion towhich. the ln ricant in the crank case will drain and provided with adischarge port above thelubricaiit level and in operative alignment withthe said lowermost portlon of the crank case, a flexible hose connectedat one end'to a lubricant receiver and provided at its opposite en witha nozzle adapted to be readilyinserted through thesaid dischargeportinto the lowermost portion of the crank case, and means to create areduced pressure in the lubricant receiver to cause the lubricant todischarge fromthe crank case to the lubricant receiver through theflexible hose.

4.v In a system for discharging lubricant from the lubricant holdingcases of vehicle motors, a crank case having a sump to which thelubricant in the case will drain and a discharge port above thelubricant level and in operative alignment with the sump, a

flexible hose connected at one end to a lubricant receiver and providedat its opposite rovide a said lowermost portion end with a noz zleadapted to be readily inserted through said discharge port into the sumof the crank case, and means to create a re uced pressure in thelubricant receiver to cause the lubricant to discharge from the crankcase to the lubricant receiver through the flexible hose.

5. In a system for discharging lubricant from the lubricant holdingcases of vehicle motors, a crank case shaped to provide a lowermostportion to which the lubricant in the crank case will drain and providedwith a discharge port in operative alignment with i the lowermostportion of the crank case and above the lubricant level and'readilyaccessible upon raising the motor hood, a lubricant eduction tubeprovided at one end with a portion ada ted to be readily inserteddischarge port in operative alignment with the sump and above thelubricant level of the .crank case and readily accessible .upon raisinthe motor hood, a flexible hose connecte at one end to alubricant'receiver and provided at its opposite endwith a nozzle ada tedto be readlly inserted through said- "disc arge port into the sump ofthe crank case, and means to create a'reduced pressure .in' thelubricant receiver to cause the lubricant to discharge from the crankcase to the 4 lubricant receiver through the flexible hose.

7. In a system for discharging lubricant from vehicle' motors, a crankcaseshaped to provide a lowermost portion to which the lubricant in thecrank case will drain and having a discharge port above the lubricantlevel and in-operativealignment with the of the crank case, a lubricanteduction tub e service station and adapted at one end to be readilyinserted through the said dis charge nport into the lowermost portionofthe era .case, and means to create a reduced pressure in theeduction'tu'be to cause the lubricant to discharge from the; crank casethrough the eduction tube,' .wh'e'reby lubricant may be .quicklydischarged from a vehicle motor brou ht to the service station.-

, rancisco, California, this Signed at? San lfithfdayof March, 1927.

located at; suitable.

HENRY-D. comma. 'l

